Sending message to Azure ServiceBus queue via REST api

Hi All,

I am trying to send a message to Azure ServiceBus queue using REST api via POSTMAN, but when I trigger the message I am getting the below error:-
<Error>

    <Code>405</Code>

    <Detail>The SessionId was not set on a message, and it cannot be sent to the entity. Entities that have session support enabled can only receive messages that have the SessionId set to a valid value. TrackingId:aew3fd4-971d-455456-ac34-453345, SystemTracker:SampleNamespace:Queue:queue_name, Timestamp:2019-09-30T10:27:09</Detail>

</Error>

Can someone tell me how can I add a sessionId in header tab, and what to add in SessionID? I tried a few thing but did not work.

Thanks,
Rudra